package com.hyl.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.hyl.common.utils.HttpUtils;
import com.hyl.common.utils.R;
import com.hyl.common.vo.MemberRespVo;
import com.hyl.gulimall.auth.feign.MemberFeignService;
import com.hyl.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 */
@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    /**
     * 社交登录成功回调
     * @param code
     * @return
     * @throws Exception
     */
    @GetMapping(value = "/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code,HttpSession session) throws Exception {

        Map<String,String> map=new HashMap<>();
        map.put("client_id","907228900");
        map.put("client_secret","c1399949f557a33af6588cbfc82efc7a");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://www.auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code",code);

        //1.根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<>(), map, new HashMap<>());


        //2.处理
        if(response.getStatusLine().getStatusCode()==200){
            //获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser= JSON.parseObject(json,SocialUser.class);

            //知道当前是哪个社交用户
            //1.当前用户如果是第一次进网站，自动注册(为当前社交用户生成一个会员信息账号，以后这个社交账号就对应指定的会员)
            //登录或者注册社交用户
            R r = memberFeignService.oauthlogin(socialUser);
            if (r.getCode()==0){
                MemberRespVo data = r.getData("data", new TypeReference<MemberRespVo>() {});
                System.out.println("登录成功：用户信息->"+data);
                log.info("登录成功，用户:{}"+data.toString());

                //1.第一次使用session；命令浏览器保存这个卡号。JSESSIONID这个cookie
                //以后浏览器访问那个网站就会带上这个网站的cookie
                //子域之间：gulimall.com auth.gulimall.com order.gulimall.com
                //发卡的时候（指定域名为父域名），即使是子域系统发的卡，也能放父域直接使用

                //  TODO 1.默认发的令牌，session=asdas 。作用域：当前域：（解决子域session共享问题）
                //TODO 2.使用JSON的序列胡方式来序列化对象数据到redis
                session.setAttribute("loginUser",data);

                //2.登录成功就调回首页
                return "redirect:http://www.gulimall.com";
            }else{
                return "redirect:http://www.auth.gulimall.com/login.html";
            }

        }else{
            return "redirect:http://www.auth.gulimall.com/login.html";
        }

    }


}
